Title :
Optoelectronically-pulsed antennas: characterization and applications
Author :
Arjavalingam, G. ; Pastol, Yves ; Halbout, J.-M. ; Robertson, W.M.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
A brief tutorial on the picosecond photoconductive effect is given. The use of picosecond optoelectronics for the characterization of broadband antennas is described. In particular, the transient radiation properties of equiangular-spiral and exponentially tapered coplanar-strip antennas are discussed. The transient radiation behavior and the polarization and radiation patterns of these antennas are easily determined with this measurement technique, without the need for anechoic chambers. Applications of picosecond-duration transient electromagnetic radiation to filter measurements, materials measurements, and scattering studies are discussed.<>
Keywords :
antenna radiation patterns; antennas; electromagnetic wave scattering; optoelectronic devices; photoconductivity; transients; broadband antennas; equiangular spiral antennas; exponentially tapered coplanar-strip antennas; filter measurements; materials measurements; measurement technique; optoelectronically pulsed antennas; picosecond optoelectronics; picosecond photoconductive effect; polarisation patterns; radiation patterns; scattering studies; transient electromagnetic radiation; transient radiation properties; Anechoic chambers; Antenna measurements; Antenna radiation patterns; Broadband antennas; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic transients; Electromagnetic wave polarization; Measurement techniques; Photoconductivity;
Journal_Title :
Antennas and Propagation Magazine, IEEE
